First victory in battle
Make the first improvement of the ship
Invite 1 friend
Build the first building on the island
Invite 5 friends
Unlock all ships
Invite 10 friends
Win 5 fights
Win 50 fights
Win 1000 fights
Win 100 fights
Build 12 buildings
Build 7 cannons on the island
Build 12 buildings of CITADEL
Make 7 improvements of the cannons on the island